American Science and Engineering, Inc. Announces New Client Contract from a Middle Eastern Government Agency for Multiple ZBVs

$6.2 Million ZBV Order to Protect High-Threat Government Facilities

(BILLERICA, Mass., February 20, 2007) -- American Science and Engineering, Inc. (NASDAQ: ASEI) (AS&E(R)), a leader in X-ray detection technology, announced today the receipt of a $6.2 million order from a new Middle Eastern customer for multiple Z(R) Backscatter(TM) Vans (ZBV).

Configured for harsh environments, the ZBVs will be utilized to secure and protect government facilities.

"We continue to add new customers to our global client base," said Robert Postle, AS&E's Vice President of Worldwide Marketing and Sales.
"Our expanding sales force is building a greater awareness of our products, services, and proprietary technologies -- increasing sales channels and bolstering our pipeline of new opportunities. We now have a solid installed base of ZBVs in the Middle East, and this client has seen first-hand the system's proven effectiveness to find explosives and other contraband. The ZBV's exceptional versatility and explosives detection capability is ideal for their crucial mission to protect high-threat government facilities."

A breakthrough in X-ray detection technology, AS&E's Z Backscatter Van is a low-cost, highly mobile screening system built into a commercially available delivery van. The ZBV allows for immediate deployment in response to security threats, and its high throughput capability facilitates rapid inspections. The system's unique "drive-by" capability allows one or two operators to conduct X-ray imaging while the ZBV drives past suspect vehicles and objects. For personnel safety in dangerous environments, a remote console is available for operating the system in stationary mode from a distance of up to 500 meters.